Exterior building design



FIG. 1 is a perspective view of a building exterior showing our new design.

FIG. 2 is a front view thereof.

FIG. 3 is a rear view thereof.

FIG. 4 is a left side view thereof; and,

FIG. 5 is a right side view thereof.

The broken lines shown in FIGS. 1-5 are for purposes of illustrating environment only and form no part of the claimed design. 

CLAIM The ornamental design for a building exterior, as shown and described. 